VetClassics CAS Options Supplement is safe for both dogs and cats and comes in two tasty options; chewable tablets or soft chews. Formulated with a unique blend of four functional mushrooms: Maitake, Reishi, Shiitake, and Turkey Tail. This powerful blend of mushrooms is combined with antioxidants and provides extra strength for your pet's immune system when they need it most.

VetClassics CAS Options Supplement is safe for both dogs and cats and comes in two tasty options; chewable tablets or soft chews. Formulated with a unique blend of four functional mushrooms: Maitake, Reishi, Shiitake, and Turkey Tail. This powerful blend of mushrooms is combined with antioxidants and provides extra strength for your pet's immune system when they need it most.